Engine-coupling.



e. v. MARTIN. ENGINE COUPLING. APP LICAT|0N FILED JUNE 28 I913.

Patented Feb. 8, 1916,

' 2 SHEETS-SHEET I I I l l l l G. V. MARTIN.

ENGINE COUPLING. APPLICATION FVILED IUNE 2a, 1913.-

Patented Feb. 8, 1916.

2 SHEETSSHEET 2 I v rgnbewlioz %1ar; who'l /neg I i11-111 of Fig. 2; Fig.

pins or bolts 6 forward ends of the laterally swlnging links 7. The links 7 are pivotall TED BTATES QFFTQE.

encnen v. MARTIN,

0F CLEVELAND, OHIO, ASSIG-NOR CASTINGS COMPANY.

TO THE NATIONAL .MALLEABLE ENGINE-COUPLING.

Application filed June 2 8, 1913. Serial No. 776,356.

To all whom it may concern Be it known that I, GEORGE V. MARTIN, a citizen of the United States, residing at Cleveland, Cuyahoga county, .Ohio, have invented new and useful Improvements in Engine-Couplings, 'of which the following is a specification, reference being had'to the accompanylng drawings, in Wl11Cll- Figure 1 is a planshowing the application of my improvements to the pilot beam of a locomotive; Fig. 2 is a front elevation thereof, with the coupler and parts partly 3 1s a section on lines 4 shows in plan a modified form of my device; Fig. 5 is a section on lines V-V of Fig. 4, and Fig. 6 is a section on lines VI'V1 of Fig. 5.

My invention relates to engine couplers,

broken away Fig.

and provides mechanism to permit lateral -5 extending vertically therethrough. The

coupler-head A is pivotally connected by the to the forked and apertured y mounted on the pilot beam B by means of the bolts or pins 8. The pin holes 9 in the rear ends of the links? are preferably elongated to relieve the links from buffing stresses, and the hubs 10 are lengthened ina vertical direction to provide extended bearing surfaces under draft against the'pins 8. Hand holds 11, integral with the links 7 are probe shifted by vided to permit the coupler to hand to any desired position, preliminary to making a coupling.

Bolted to the forward face of the pilot beam B is a casting 12 having apertures 13 for the links 7. The apertures 13 are of sufficient width to permit the necessary oscillation of the links 7, and of the apertures act as supports for the links 7. The casting 12 is comprised of the buffer segments 14 and 15, curved to the arc of the circle about which'the coupler-head swings lateral movements, and upper and in 1ts Specification of Letters Patent.

imposed upon the coupler,

has a short through the wings direction.

-ward extending shank located bufling springs'22 confined between the lower faces Patented Feb. 8,1916.

lower flanges 16 and 17 respectively extend outwardly beyond the, buffer. segments 14 and 15. The lower flange 17 acts as a supporting shelf for the rearend ofthe coupler shank.

lnterposed between the faces of the buffer segments Hand 15 the coupler shank 2 is a double concave and the rear end 3 of wearing shoe 18, the forwardface of which I is curved to fit the curved rear end 3 of the coupler shank, and the rear face is curved to the same arc as the buffer faces 14 and 15. The pivotal connection of the couplerhead A to the pilot beam B by means of the links 7'permits considerablelateral movement of the coupler-head, and during such lateral movement, the Swearing shoe '18 slides laterallyupon the buffer segments 14 1 and 15 and is always interposedbetween the rear end of thecoupler shank and the segments 14 and 15 in position to receive and transmit thereto all of. the bufiing strains while the links 7 by reason of their elongated pin holes 9, 1

are relieved of all buffing strains.

The, pulling strains are transmitted 4 to the links 7 and from the links 7 to the pilot beam B. Stops 19 are provided against which the wearing shoe 18 is designed to abut toprevent extreme lateral movement of the coupler-head in either The elongated holes 9 in the links 7 permit the coupler A to move forwardly to a slight extent in swinging laterally so that the wearing shoe 18 will-be relieved from tight contact with the curved buffing segments 14 and 15 on the pilot beam. Friction between these parts is thereby eliminated and the coupler may bemoved laterally in either direction without undue effort.

In Figs. 4, 5 and '6 I show a modification of my invention in which the pilot beam B has a suitable central aperture 20 and buffer segments. 14 and 15 integral with the pilot beam B. The wearing shoe 18 has a'rear- 21 upon which are the followers 23 and 24, and also mounted on the shank 21. The forwardfollower 23 bears agalnsta collar 25' on the shank21 and 24'has a concave rear face the rear follower 26 with a socket engagement against cooperating abutments 2'? on the bracket 28,-

which is secured to the pilot beam; B, and incloses the spring mechanism Just described, The socket engagement of the follower 24; against the abutments 27 permits v to travel laterally along the wearing shoe 18 with the springs 22 and followers 23 and 2% located thereon to remain always in longitudinal alinement with the coupler-head in position best suited] to relieve the buffing shocks regardless of whether or not the coupler remains in the longitudinal center line of the engine.

The pin holes 9 in the links 7 are sufficiently elongated to permit the rearward movement of the coupler allowed by the bufiing springs without throwing buffing strains on the links 7 or on the pins 8. The links 7' to the rear of the pin holes 9 have upwardly and downwardly extending lugs 29 having concave forward faces which engage correspondingly shaped convex bosses 30, through which the pulling stresses are transmitted to the pilot beam B. The pins 8 are therefore relieved of both pulling and buffing stresses. The links 7 also have downwardly extending portions 31 which bear on the shelf 32, which forms a support for the links and upon which the links slide in allowing the coupler-head to move laterall In buffing after the spring resistance has been taken up. the wearing shoe 18 comes in contact with thebuffer faces 14, and 15, and the remainder of the bufiing stress is transmitted. therethrough to the pilot beam B.

As the coupler moves rearwardly under bufling stresses in the initial spring resisted movement, the lugs 29 of the links 7 come out of engagement with the bosses 30, but the lugs 29 are subsequently returned to their socket bearing with the bosses 30 by compression of the springs 21, and are normally always in position to receive pulling strains.

Various modifications may be made in the construction which I have shown and described herein without departing from my invention.

What I claim is:

1. A coupler mounted for lateral movement, a buffer segment mounted on the car structure, a shoe interposed between the coupler shank and the segment, and adapted said segment during lateral movement of the coupler, and links forming the pivotal connection between the coupler and the car structure.

2: In a coupler mounted for lateral movement, a buffer segment on the car structure adapted to permit the coupler to slide bodily in a lateral direction and to take up the bufiing stresses from the coupler, and, a plurality of links through which the coupler swings radially about apoint to the rear of the rearmost portion of its shank, the said links being adapted to take up the pulling strains and comprising the sole pivotal connection between the coupler and the car structure.

3. In a coupler mounted for lateral movement, a buffing shoe interposed between the coupler and the car structure and adapted for travel laterally with the coupler, and a plurality of links forming the sole pivotal connection between the coupler and the car structure and upon which the coupler swings radially about a point to the rear of the rearmost portion of its shank, the said links being under strain during pulling and being relieved of strain during buffing.

4. A coupler mounted for lateral move ment, having a head, and a shank, a buffing segment mounted on the car structure, a shoe adapted to engage said shank and to slide laterally along said segment, and a plurality of links connecting said coupler head with the car structure, said linksforming the pivotalmounting of said coupler.

5. In a coupler mounted for lateral movement, a buffer stop on the car structure adapted to restrict rearward movement of the coupler and to take up the buffing strains, and links forming the pivotal connection between the coupler and the car structure, adapted to restrict the forward movement of the coupler and to take up pulling strains, the said stop being inoperative in pulling and the said links in buffing.

6. In an engine coupler mounted for lateralmovement, a buffing surface on the pilot beam, a wearing shoe normally out of contact with the buffing surface and having a bearing on its forward face for reception of the coupler shank, pulling links secured at their forward ends to the'coupler-head, and at their rear ends to the pilot beam and normally in position to transmit pullingstrains.

In an engine coupler mounted for lateral movement about an axis in the longitudinal center line of the engine, a plurality of links having a pin and socket engagement at their forward ends with the coupler-head, and at their rear ends with the pilot beam, the said links having pulling lugs engaging the pilot beam and adapted to relieve the pin connections with the pilot beam from strain.

8. In an engine coupler mounted for lateral movement, a buffer surface on the pilot beam, a wearing shoe having on its forward side a bearing against therear end of the coupler shank, and on its rear side a bearing for engagement with the buffer surface, the said wearing shoe having a rear ward extension, buffer springs mounted on the said rearward extension, the said buffer springs being adapted to take up the initial buffing shock and to return the coupler-head to normal position, and a plurality of links connecting the coupler-head and the pilot beam for the transmission of pulling strains.

9. In an engine coupler, a wearing shoe engaging the coupler, shank, buflfer springs on the wearing shoe, pulling links connecting the coupler-head and the pilot beam, the said wearing shoes, bufl'er springs, and links and coupler being adapted for radial movement about an axis in the longitudinal center line of the engine.

10. A coupler having a head and a shank, a plurality of links forming a pivotal mounting for said coupler and permitting it to move bodily in a lateral direction, and a buffer segment secured to the pilot beam and in substantial alinement with the coupler shank through its arc of lateral movement, said links being pivoted to the car to the rear of the front face of the pilot beam, whereby an extended bodily lateral movement of the coupler is obtained.

11. A coupler having a head and a shank, a plurality of links forming a pivotal mounting for said coupler and permitting it to swing laterally on the arc of a circle between said segment and said coupler shank. 12. In a coupler mounted for lateral movement, a bufier segment on the car structure for receiving the buffing blows from the coupler, and a plurality of links secured at their forward ends to the coupler head and at their rear ends to the pilot beam, said links being movable laterally and longitudinally by the coupler head, said links being also free to move relatively to the pilot beam during buffing.

GEO.- V. MARTIN. Witnesses:

BARTON J. MEARS, HARRY E. ORR.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, D. 0'. 

